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Gene FLT3
Variant N676K
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions FLT3 N676K lies within the protein kinase domain of the Flt3 protein (UniProt.org). N676K results in constitutive phosphorylation of Flt3, activation of Akt and Mapk signaling, leading to malignant hematological transformation in animal models (PMID: 26891877), and has been demonstrated to occur as a resistance mutation in the context of FLT3 internal tandem duplication (FLT3-ITD) mutations (PMID: 16150941).
Associated Drug Resistance Y
Category Variants Paths

FLT3 mutant FLT3 act mut FLT3 N676K

FLT3 mutant FLT3 exon16 FLT3 N676K

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Transcript NM_004119.3
gDNA chr13:g.28028203G>C
cDNA c.2028C>G
Protein p.N676K
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_004119.3 chr13:g.28028203G>C c.2028C>G p.N676K RefSeq GRCh38/hg38
NM_004119 chr13:g.28028203G>C c.2028C>G p.N676K RefSeq GRCh38/hg38
NM_004119.2 chr13:g.28028203G>C c.2028C>G p.N676K RefSeq GRCh38/hg38

Filtering

  • Case insensitive filtering will display rows if any text in any cell matches the filter term
  • Use simple literal full or partial string matches
  • Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page. Filtering has no impact on query parameters.
  • Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

Sorting

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
FLT3 N676K hematologic cancer sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) resulted in reduced cell viability in transformed cells expressing FLT3 N676K in culture (PMID: 32040554). 32040554
FLT3 N676K acute myeloid leukemia predicted - sensitive Sorafenib Case Reports/Case Series Actionable In a clinical case study, a patient with acute myeloid leukemia harboring FLT3 N676K, along with NRAS G12A, KRAS G12D, ASXL1 G629fs, and GATA2 M388fs, responded to Nexavar (sorafenib) treatment (PMID: 32984009). 32984009